Run benchmark specs optionally

spec/benchmark_spec.rb

@@ -2,7 +2,8 @@ require_relative 'helper'
 require 'rack/test'
 require 'app'
 
-describe 'benchmark the app' do
+if ENV['BENCH']
+  describe 'benchmark the app' do
     include Rack::Test::Methods
 
     let(:app) { Sinatra::Application }
@@ -32,4 +33,5 @@ describe 'benchmark the app' do
         get "/#{random_date}?base=USD"
       end
     end
+  end
 end

spec/helper.rb

@@ -1,3 +1,3 @@
 require 'minitest/autorun'
-require 'minitest/benchmark'
+require 'minitest/benchmark' if ENV['BENCH']
 require 'minitest/pride'